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Title: Techniques To Determine The True Pipe-To-Soil Potential Of A Buried Pipeline
Author: T. J. Barlo, R. R. Fessler
Source: American Gas Association 1981
Year Published: 1981
Abstract: Techniques have been developed that now make it possible to compensate for the IR drop that occurs between the reference half cell and the buried pipeline when measuring the pipe-to-soil potential at ground level. These techniques have been applied to operating gas-transmission and distribution pipelines. The techniques are applicable to bare pipelines and coated pipelines for which there is a measurable transverse potential gradient. The development of four techniques is presented with a discussion of how the techniques are applied in the field. Sample data obtained on operating pipelines where the techniques were applied are presented with discussion of the limitations of the techniques. Key words: IR drop compensation, buried pipelines, true pipe-to-soil potential, and measurement techniques.

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